Carburetor, JET, Rochester Quadrajet, 1966-73, BB Chevy, Stage 2, 750 CFM

1966-73 Chevrolet Big Block 750 CFM Rochester Quadrajet Carburetor by JET Performance®

Recalibrated cores include sealed casting plugs, a new float and bronze-bushed throttle shafts.

This JET Performance® 750 CFM Rochester Quadrajet starts with a selected core that is completely disassembled, cleaned and inspected. Casting plugs are epoxy-sealed to prevent fuel leak-down into the intake. Circuits are checked for sizing, with jets and primary/secondary metering rods matched to the calibration. Idle, off-idle, main, accelerator-pump and high-speed circuits are recalibrated for the intended engine combination. Reassembly includes a new float, choke pull-off and bronze-bushed throttle shafts. The Stage 2 calibration is intended for a compatible mildly modified street/strip engine. Match the carburetor stage to the intake, headers, cylinder heads and camshaft rather than expecting one calibration to suit every build.

• 1966-73 Chevrolet Big Block engine coverage • 750 CFM Rochester Quadrajet layout • Stage 2 calibration • Fully cleaned and inspected original core • Epoxy-sealed casting plugs resist leak-down • Recalibrated fuel and transition circuits • New float and choke pull-off installed • Bronze-bushed throttle shafts